Structure in a healing fissure in topaz from Brazil
Agate from Anzi, Maroc
Natural etching structure on a crystal face of diamond (trigons), polarised light
Two-phase inclusions in tourmaline from Namibia
Two-phase inclusion in amethyst, Brazil
Inclusions of fossil plant debris in opal from Wollo, Ethiopia
Fluid inclusions containing mica and quartz, in aquamarine from Pakistan
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
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